Results 61 to 70 of about 185,089,399 (155)

Burden of recreational water illness due to exposure to cyanobacteria and their toxins in freshwater beaches in Canada: protocol of a prospective cohort study

BMJ Open
Introduction Cyanobacterial blooms are increasingly common in freshwater sources used for swimming and other recreational water contact activities in Canada.
Teresa Brooks, Ian Young, J Johanna Sanchez, Fatih Sekerciouglu, Binyam N Desta, Claire Holeton, Dylan Lyng, Victoria Peczulis, Shane Renwick, Jordan Tustin   +9 more
doaj   +1 more source

Rationale for the establishment of Ontario's Provincial Water Quality Objectives

, 1979
This is a companion publication to the Ministry of the Environment booklet entitled "Water Management - Goals, Policies, Objectives and Implementation Procedures of the Ministry of the Environment.
Ontario Ministry of Environment
core  

Water management: Policies, guidelines, Provincial Water Quality Objectives of the Ministry of the Environment and Energy [PDF]

, 1994
This 1994 publication contains the Ministry of Environment and Energy policies and guidelines for the management of the province's water resources. It gives direction on how to manage the quality and quantity of both surface and ground waters.
Ontario Ministry of the Environment and Energy
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Physical characteristics of the Humber River [PDF]

, 1984
As part of the Toronto Area Watershed Management Strategy Study, the Metropolitan Toronto and Region Conservation Authority and the Water Resources Branch of the Ministry of the Environment carried out a physical survey of the Humber River during the ...
Bacchus, A., Klose, S. R.
core   +1 more source

Natal den prey delivery of Arctic and red fox in relation to landscape patterns in food availability

Arctic Science
Arctic fox (Vulpes lagopus (Linnaeus, 1758)) and red fox (Vulpes vulpes (Linnaeus, 1758)) may compete for resources in areas of sympatry, with diets varying according to fluctuations in small mammal abundance and the availability of alternative prey.
Emily Chou, Glen S. Brown, Rodney W. Brook, Alexandra A.Y. Derian, Paul Szpak   +4 more
doaj   +1 more source

Ontario's water quality objective development process

, 1991
As part of its program to ensure that the surface waters of Ontario are satisfactory for aquatic life and recreation, the Ontario Ministry of the Environment develops Provincial Water Quality Objectives (PWQOs) and Guidelines (PWQGs). This report details
Aquatic Criteria Development Committee, Water Resources Branch, Ontario Ministry of the Environment
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SARS-CoV-2 viral titer measurements in Ontario, Canada wastewaters throughout the COVID-19 pandemic

Scientific Data
During the COVID-19 pandemic, the Province of Ontario, Canada, launched a wastewater surveillance program to monitor SARS-CoV-2, inspired by the early work and successful forecasts of COVID-19 waves in the city of Ottawa, Ontario.
Patrick M. D’Aoust, Nada Hegazy, Nathan T. Ramsay, Minqing Ivy Yang, Hadi A. Dhiyebi, Elizabeth Edwards, Mark R. Servos, Gustavo Ybazeta, Marc Habash, Lawrence Goodridge, Art Poon, Eric Arts, R. Stephen Brown, Sarah Jane Payne, Andrea Kirkwood, Denina Simmons, Jean-Paul Desaulniers, Banu Ormeci, Christopher Kyle, David Bulir, Trevor Charles, R. Michael McKay, Kimberley Gilbride, Claire Oswald, Hui Peng, Vince Pileggi, Menglu L. Wang, Arthur Tong, Diego Orellano, WSI Consortium, Christopher T. DeGroot, Robert Delatolla   +31 more
doaj   +1 more source

Influence of drought identification methods on analyzing and assessing responses of water quality to droughts

Ecological Indicators
Hydrological drought, a global extreme event impacting water resources and ecosystems, is characterized by absolute (fixed drought threshold, FDT) or relative (variable drought threshold, VDT) low streamflow metrics. These metrics influence water quality
Weijie Zhang, Jiefeng Wu, Huaxia Yao, Jie Wang   +3 more
doaj   +1 more source

Pesticides in Ontario drinking water - 1985 [PDF]

, 1987
In 1984 the herbicide alachlor was detected in several municipal and private drinking water supplies. On the basis of the toxicity data available, Health and Welfare Canada set an interim maximum acceptable concentration (IMAC) of 5 ?g/L.
Ontario Ministry of the Environment, Water Resources Branch, Drinking Water Section
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Atlas of the Breeding Birds of Ontario 2001–2005.— Michael D. Cadman , Donald A. Sutherland , Gregor G. Beck , Denis Lepage , and Andrew R. Couturier , editors. 2007. Copublished by Bird Studies Canada, Environment Canada, Ontario Field Ornithologists, Ontario Ministry of Natural Resources, and Ontario Nature, Toronto. xxii + 706 pp. ISBN 978-1-896059-15-0. US$92.50 (cloth). [PDF]

The Condor, 2010
openaire   +1 more source